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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1634 (Engine Mechanical - 3.5L) >> Repair Instructions - On Vehicle >> Valve Stem Oil Seal and Valve Spring Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
  • Before removing the valve locks, rotate the engine so that the piston in the cylinder you are working on is at top dead center (TDC). This will eliminate the possibility of the valve accidentally falling inside the cylinder.
  • Loosen the spark plug, and clean any dirt and/or debris from the spark plug recess area before removing.
    Fig 1: Identifying Valve Spring Compressing Tools
    GM1557721Courtesy of GENERAL MOTORS CORP.
  1. Remove the spark plug. Refer to Spark Plug Replacement .
  2. Remove the rocker arm. Refer to Valve Rocker Arm and Push Rod Replacement .
  3. Install the J 22794  into the spark plug port. See Special Tools . Apply compressed air in order to hold the valve in place.
  4. Using caution so as not to damage the valve spring or valve spring dampener, compress the valve spring using the J 5892-D  (1) and the EN-47823  (2). See Special Tools .
    5. Fig 2: Identifying Valve Components
    GM1665094Courtesy of GENERAL MOTORS CORP.
  5. Remove the valve spring cap keys.
  6. Remove the valve cap.
  7. Remove the valve spring.
  8. Remove the valve stem oil seal.
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